Connection Diagram
2C screen mic cable
( Unbalanced audio )
Weekly Programmable Timer
Page 5
PT1800
MX2222 Pre-Amplifier Mixer
The connection diagram above uses external chime unit ( or other playback devices ), which shall be triggered by PT1800
at designated time.
It is also intended to trigger different chime or message for different times, such as to differentiate the melody for morning
and the afternoon working shift. In this case, a set of times shall trigger channel 1 and another set shall trigger channel 2.
This is then linked to chime / tone unit at the corresponding triggering port.
If whenever a time is reached and requires all zones to be activated, use diodes as shown above for connection to Zone
Selector all call triggering. Otherwise, this connection may be omitted.
To Volume Controls
E/M Overriding
To power amplifiers
2C screen mic cable
( Balanced Audio )
EP1200 Emergency Paging Panel
Optional connection to
override all zones
E
P
1
2
0
0
MIN
MAX
MAX
MIN
Another Quality Product From
S/N :
INPUT LEVEL
SIREN
MESSAGE
MESSAGE
SIREN
MESSAGE IN
PRE IN
PRE OUT
REMOTE TRIGGER
EXT IN
OUTPUT
DC INPUT
24V DC
MIXER
CHIME
REC
BGM
AC 50 / 60HZ
LINE OUT
M
X2
1
2
2
MAINS : 230V +/-10%
CONT
TRIG
RELAY
RELAY
DC 24V
0.5 A
+
-
W
E
S
T
.
2
T
O
N
E
B
E
L
L
S
IR
E
N
~
S
IR
E
N
-
C
O
M
MIN
MAX
INPUT GAIN
OUTPUT
SELECT SWITCH
UNBALANCED
BALANCED
1.0 V / 10K ?
OUTPUT
4
T
.D
O
W
N
SIREN ~ LATCHED CONTACT.
CHIMES ~ MOMENTARY CONT.
REPEAT IF LATCHED.
REMOTE TRIGGERING
P
T
1
8
0
0
DC 24V
+
OUTPUT
LEVEL
N
O
C
O
M
N
O
C
O
M
N
O
C
O
M
N
O
C
O
M
CH1
CH2
CH3
CH4
N
O
C
O
M
N
O
C
O
M
N
O
C
O
M
N
O
C
O
M
CH5
CH6
CH7
CH8
RELAY DRY CONTACT
LINE OUT
UNBALANCE
Option 2 : Using PT1800 to trigger external
chime unit / other playback devices
CM1400 Chime Unit
ZS Zone Selector
Diode
